Vice President Biden attacked GOP presidential candidate Mitt Romney in an op-ed in the Des Moines Register today, less than two weeks before the Iowa caucuses. The Obama re-election campaign has focused on Romney as the most likely GOP nominee, but Biden is the highest-profile member of the president’s team to directly attack the former Massachusetts governor. “How can anyone forget the economic catastrophe brought about by the same policies Mr. Romney’s proposing? His are the same policies that deregulated Wall Street and turned it into a casino that gambled recklessly with hardworking Americans’ money,” Biden wrote. The vice president did not mention any other presidential candidates in the op-ed, even though former House Speaker Newt Gingrich (GA) recently had been seen as a frontrunner.